Mary, the tunnel boring machine that has been paving the way for the expanded Hampton Roads Bridge-Tunnel, hit a milestone Wednesday when she finished the first of twin tunnels that are part of the ...

A Groundbreaking Technology Brunel's original machine, dubbed a tunneling shield, was an iron framework built to brace the earth as a tunnel was dug through it. As the shield advanced, workers ...

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Here's how the tunnel boring machine, or TBM, works: As the 200-ton TBM moves forward, a round cutter head studded with titanium teeth grinds into the tunnel face and splits large chunks off the ...

Rosie, the tunnel boring machine named after Akron's own Rosie the Riveter, has a sister coming to town later this year, and her name is Elaine. Named after environmental advocate Elaine Marsh ...

Mary, the tunnel-boring machine, is on the move again! Thursday, Mary began boring a twin eastbound tunnel in part with the HRBT Expansion Project.

Tunnel boring machine used in HRBT expansion arrives at North Island By: Kelsey Jones Posted 12:43 PM, Apr 17, 2024 and last updated 6:05 AM, Apr 19, 2024 ...

The tunnel boring machine known as Chessie got back to work on April 8, days before the 60th anniversary of the bridge-tunnel’s opening on April 15, 1964.

Herrenknecht’s ElbX machine is installing the segment lining for the tunnel while advancing, and will be fitting the rail facilities and brackets for the cable installation. It’s a semi ...